EP0356826A3 - Speed sensor pickup assembly with slotted magnet - Google Patents

Speed sensor pickup assembly with slotted magnet Download PDF

Info

Publication number
EP0356826A3
EP0356826A3 EP19890115210 EP89115210A EP0356826A3 EP 0356826 A3 EP0356826 A3 EP 0356826A3 EP 19890115210 EP19890115210 EP 19890115210 EP 89115210 A EP89115210 A EP 89115210A EP 0356826 A3 EP0356826 A3 EP 0356826A3
Authority
EP
European Patent Office
Prior art keywords
speed sensor
pickup assembly
pole piece
coil
sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19890115210
Other languages
German (de)
French (fr)
Other versions
EP0356826A2 (en
Inventor
Thomas Arthur Gee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eaton Corp
Original Assignee
Eaton Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eaton Corp filed Critical Eaton Corp
Publication of EP0356826A2 publication Critical patent/EP0356826A2/en
Publication of EP0356826A3 publication Critical patent/EP0356826A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors

Abstract

A dual speed sensor pickup assembly (140) for sensing the rotational velocity of two independently rotatable, closely axially spaced exciter rotors (116 and 118) is provided. The pickup assembly includes two speed sensor assemblies (136 and 138) each including a pole piece (152,160) having a longitudinal axis (152a, 160a) with the longitudinal axes skewed relative to one another but radial relative to the common axes of rotation (24) of the exciter rotors. Each speed sensor includes a permanent magnet (154,162) disposed between an end of the pole piece (152,160) and having a face divided into first and second surfaces (154a,154b and 162a,162b) by a slot (154c,162c) therein. In one embodiment a primary coil (156,164) and a secondary or anti-cross talk coil (158,166) surrounds the pole piece of each sensor (136,138), and each secondary coil is conductively connected to the primary coil of the other sensor. In another embodiment, an electronic circuit (176) is provided for producing anti-cross talk signals which are added to the speed sensor signals.
EP19890115210 1988-08-29 1989-08-18 Speed sensor pickup assembly with slotted magnet Withdrawn EP0356826A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US23791488A 1988-08-29 1988-08-29
US237914 1988-08-29
US07/262,550 US4937522A (en) 1988-08-29 1988-10-25 Speed sensor pickup assembly with slotted magnet
US262550 1988-10-25

Publications (2)

Publication Number Publication Date
EP0356826A2 EP0356826A2 (en) 1990-03-07
EP0356826A3 true EP0356826A3 (en) 1992-06-03

Family

ID=26931158

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890115210 Withdrawn EP0356826A3 (en) 1988-08-29 1989-08-18 Speed sensor pickup assembly with slotted magnet

Country Status (4)

Country Link
US (1) US4937522A (en)
EP (1) EP0356826A3 (en)
JP (1) JPH0283453A (en)
AU (1) AU611367B2 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69101578T2 (en) * 1990-02-14 1994-08-25 Eaton Corp Rotational speed sensor.
DE4020228A1 (en) * 1990-06-26 1992-01-02 Philips Patentverwaltung ARRANGEMENT FOR DETECTING A MOVING FERROMAGNETIC ELEMENT
US5507089A (en) * 1992-05-22 1996-04-16 Component Sales & Consultants, Inc. Method of assembly of a variable reluctance sensor
US5278496A (en) * 1992-05-22 1994-01-11 Component Sales & Consultants, Inc. High output and environmentally impervious variable reluctance sensor
DE4341890C2 (en) * 1992-12-09 2003-11-06 Denso Corp Magnetic detection device
US5614822A (en) * 1994-01-28 1997-03-25 Nsk Ltd. Rolling bearing unit with rotational speed detection device having a tone wheel and a sensor
CA2175946A1 (en) * 1995-06-06 1996-12-07 Brian G. Babin Apparatus for sensing the speed of a rotating element
US6693418B2 (en) 2000-01-07 2004-02-17 Bendix Commercial Vehicle Systems Llc Magnetic wheel speed sensor having one-piece pole and magnetic flux concentrator
US20020129613A1 (en) * 2000-10-10 2002-09-19 Thermo King Corporation Cryogenic refrigeration unit suited for delivery vehicles
US6751966B2 (en) * 2001-05-25 2004-06-22 Thermo King Corporation Hybrid temperature control system
US6609382B2 (en) * 2001-06-04 2003-08-26 Thermo King Corporation Control method for a self-powered cryogen based refrigeration system
US6698212B2 (en) * 2001-07-03 2004-03-02 Thermo King Corporation Cryogenic temperature control apparatus and method
US6631621B2 (en) * 2001-07-03 2003-10-14 Thermo King Corporation Cryogenic temperature control apparatus and method
US6694765B1 (en) * 2002-07-30 2004-02-24 Thermo King Corporation Method and apparatus for moving air through a heat exchanger
US6895764B2 (en) * 2003-05-02 2005-05-24 Thermo King Corporation Environmentally friendly method and apparatus for cooling a temperature controlled space
US20070176593A1 (en) * 2006-01-31 2007-08-02 Paul Fathauer Transmission sensor with overmolding and method of manufacturing the same
US7242180B1 (en) * 2006-05-10 2007-07-10 Key Safety Systems, Inc. Rotationally orientated dual differential hall effect speed and direction gear tooth sensor assembly
US8018225B2 (en) * 2008-11-25 2011-09-13 General Electric Company System and method for sensing the periodic position of an object
US7948229B2 (en) * 2008-08-29 2011-05-24 General Electric Company High temperature electronics for passive eddy current sensors
GB2476184B (en) * 2008-08-29 2012-05-02 Gen Electric System and method for sensing the periodic position of an object
US8167762B2 (en) * 2009-04-24 2012-05-01 American Axle & Manufacturing, Inc. Drive axle assembly with wheel speed measurement system
JP2011117511A (en) * 2009-12-02 2011-06-16 Honda Motor Co Ltd Differential gear for vehicle, and vehicle
US20140001764A1 (en) * 2011-12-22 2014-01-02 Humancar, Inc. Human-Powered Electrical Generating Device
DE102012223593A1 (en) * 2012-12-18 2014-06-18 Bosch Mahle Turbo Systems Gmbh & Co. Kg Sensor device for detecting at least one rotational property of a rotating element
US11796556B2 (en) 2018-09-19 2023-10-24 Suzhou Littelfuse Ovs Co., Ltd. Speed sensor assembly
US11598280B2 (en) * 2020-04-22 2023-03-07 Dana Heavy Vehicle Systems Group, Llc System and method for measuring torque and speed of an axle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1071122A (en) * 1965-03-26 1967-06-07 Ass Elect Ind Improved electromagnetic probe
US3769533A (en) * 1972-05-22 1973-10-30 Bendix Corp Adaptive braking wheel speed sensor
US3961214A (en) * 1975-06-18 1976-06-01 International Telephone & Telegram Corporation Velocity pick-off with noise cancellation
FR2344022A1 (en) * 1976-03-08 1977-10-07 Gen Electric VARIABLE RELUCTANCE SPEED SENSOR
EP0080056A2 (en) * 1981-11-20 1983-06-01 Vacuumschmelze GmbH Electromagnetic displacement sensor with multiple output
US4700133A (en) * 1986-02-28 1987-10-13 Ssi Technologies, Inc. Variable reluctance magnetic sensor with pole piece and shell projections matched to gear teeth
JPS6348149A (en) * 1986-08-12 1988-02-29 Alps Electric Co Ltd Feed device
DE3701467A1 (en) * 1987-01-20 1988-07-28 Elektroteile Gmbh Magneto-electrical velocity pick up

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3626225A (en) * 1970-06-01 1971-12-07 Bendix Corp Wheel speed sensor for an adaptive braking system having a rotatable tone wheel and electromagnetic pickup means
FR2369565A1 (en) * 1976-10-26 1978-05-26 Snecma MULTI-WINDING ELECTROMAGNETIC SENSOR FOR SPEED MEASUREMENT
JPS5619759U (en) * 1979-07-25 1981-02-21
DE3400870A1 (en) * 1984-01-12 1985-07-25 Vdo Adolf Schindling Ag, 6000 Frankfurt INDUCTIVE
DE3411773A1 (en) * 1984-03-30 1985-05-23 Daimler-Benz Ag, 7000 Stuttgart DEVICE FOR DETECTING THE SPEED AND / OR A TURNING ANGLE OF A SHAFT
DE3426784A1 (en) * 1984-07-20 1986-01-30 Bosch Gmbh Robert MAGNETORESISTIVE SENSOR FOR DELIVERING ELECTRICAL SIGNALS
US4745363A (en) * 1986-07-16 1988-05-17 North American Philips Corporation Non-oriented direct coupled gear tooth sensor using a Hall cell

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1071122A (en) * 1965-03-26 1967-06-07 Ass Elect Ind Improved electromagnetic probe
US3769533A (en) * 1972-05-22 1973-10-30 Bendix Corp Adaptive braking wheel speed sensor
US3961214A (en) * 1975-06-18 1976-06-01 International Telephone & Telegram Corporation Velocity pick-off with noise cancellation
FR2344022A1 (en) * 1976-03-08 1977-10-07 Gen Electric VARIABLE RELUCTANCE SPEED SENSOR
EP0080056A2 (en) * 1981-11-20 1983-06-01 Vacuumschmelze GmbH Electromagnetic displacement sensor with multiple output
US4700133A (en) * 1986-02-28 1987-10-13 Ssi Technologies, Inc. Variable reluctance magnetic sensor with pole piece and shell projections matched to gear teeth
JPS6348149A (en) * 1986-08-12 1988-02-29 Alps Electric Co Ltd Feed device
US4792707A (en) * 1986-08-12 1988-12-20 Alps Electric Co., Ltd. Disk tracking device
DE3701467A1 (en) * 1987-01-20 1988-07-28 Elektroteile Gmbh Magneto-electrical velocity pick up

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AUTOMOTIVE ENGINEERING. vol. 83, no. 7, July 1975, NEW YORK 'ANTI-SKID BRAKING' *
PATENT ABSTRACTS OF JAPAN. vol. 012, no. 265 (E-637) 23 July 1988; & JP-A-63 048 149 (ALPS ELECTRIC CO. LTD.) 29-02-1988 *

Also Published As

Publication number Publication date
AU4021689A (en) 1990-03-01
AU611367B2 (en) 1991-06-06
EP0356826A2 (en) 1990-03-07
US4937522A (en) 1990-06-26
JPH0283453A (en) 1990-03-23

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